Signal grasping and state analyzing method based on chip of non-contact smart card

A smart card chip and non-contact technology, which is applied in the direction of instruments, inductive record carriers, computer components, etc., can solve the problems of lack of analysis methods for non-contact smart cards, interference with non-contact smart card and card reader signal interaction, etc., to achieve Good technical scalability, saving hardware purchase and maintenance costs, and strong anti-interference effect

Inactive Publication Date: 2016-04-13
SHANGHAI HUAHONG INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing methods of information analysis all use huge external hardware devices to monitor and capture the interactive signals between the contactless smart card and the card reader. When the third-party device captures the signal, it will also interfere with the normal contactless smart card. The signal interaction between the smart card and the card reader, and at the same time, there is still a lack of effective analysis methods for the status of the contactless smart card itself

Method used

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  • Signal grasping and state analyzing method based on chip of non-contact smart card
  • Signal grasping and state analyzing method based on chip of non-contact smart card
  • Signal grasping and state analyzing method based on chip of non-contact smart card

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Embodiment Construction

[0011] As shown in the accompanying drawings, the method of signal capture and state analysis based on the non-contact smart card chip is realized by means of software on the non-contact smart card. The whole implementation process is to open up a specific space in the storage device of the contactless smart card, and then before the contactless smart card software sends data, or after receiving the data, the data generated in the previous process, the contactless smart card The data to be sent, the data received from the corresponding card reader device, or some register values ​​that can directly reflect the state of the contactless smart card, are written in a certain order by calling a specific function The card is erased and written in this memory unit before proceeding to the next step of the process. The implementation of the specific function is based on the operation of the storage device. The main function is to write the temporary data sent and received by the conta...

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Abstract

The invention discloses a signal grasping and state analyzing method based on a chip of a non-contact smart card. The method comprises the following steps: before the non-contact smart card sends data or performs operation processing, writing data to be sent and state information of the non-contact smart card into storage device of the non-contact smart card via an operating function of the storage device; and monitoring the non-contact smart card once the non-contact smart card goes wrong in practical use, and reading all information from the storage device for analysis when the chip of the non-contact smart card is re-electrified. The method is low in cost and high in accuracy.

Description

technical field [0001] The invention relates to the field of non-contact smart cards, in particular to a method for capturing signals and analyzing states based on non-contact smart card chips. Background technique [0002] With the advent of the information age, people's lives are increasingly dependent on contactless smart cards. Although my country's non-contact smart card technology started relatively late compared with developed countries, it is constantly improving and innovating in its exploration. Contactless smart cards have achieved long-term development in terms of information storage capacity, functional diversification, and information security protection. At the same time, the contactless smart card is not perfect at the technical level. During the field test and use, there will be many problems that need to be debugged. For this, technicians often have no way to understand the direct communication content of the contactless smart card. , which greatly increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00
Inventor 张修远黄杰人戴昭君
Owner SHANGHAI HUAHONG INTEGRATED CIRCUIT
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